Lamp-receptacle.



E. F. GUTH.

LAMP RECEPTACLE.

APPLICATION FILED JAN. 2t. 1915.

WITNESSES. l/Vl/ENTOI? flow/v F607,

Patented July 27, 1915;

i To all whom it may concern:

EDWIN, F. GUTH, on ST. Louis, MISSOURI.

, LAMP-RECEPTACLE.

Specification of Letters Patent. Patented July 27, 1915.

Application filed January 21, 1915. Serial No. 3,426.

Be it known that I, EDWIN F. GUTH, a

citizen of the United States of America, re v siding at the city of St. Louis, State of Missouri, have invented a certain new and useful Lamp-Receptacle, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to a receptacle or socket for electric lamps, its object being to provide a socket which shall combine theconvenience and simplicity of what are known as open terminal sockets wlth the safety, in the matter of fire prevention, of

closed terminal sockets.

Closed terminal sockets, as now constructed, usually comprise two or more parts, at least one of which must be removed to give access to the terminals, or, are of the form known as pig-tail sockets, in which short connecting wires are permanently fastened in the socket by means of fusible insulating, material. Some of the disadvantages of these sockets, in addition to their increased cost, are that connection with the supply wires must be made by splicing and the joint then insulated, and that the connecting wires often break when bent ad acent to the socket, thus rendering the entire socket useless for further service. The objection to open terminal sockets resides in their dan er as a source of fire, and the rules of re underwriters require that re-' ceptacles having exposed tei mmals must not be used in canopies or fixtures unless completely inclosed in metal.

Bymeans of my invention, ,I avoid the disadvantages of the prior closed terminal receptacles in the matter of the cost of construction and installation and, at the same time, secure the safety of such receptacles. By my invention, I also secure the relative cheapness of construction and simplicity of installation characteristic of the open terminal receptacle. V

In the accompanying drawings, which illustrate one embodiment of my invention,

provided with a lamp receiving socket 2 and relatiyely deep recesses'or pockets3 communicating at their bottom with the bottom of the lamp receiving socket. In the lamp socket is situated the usual threaded conducting shell a. to which is electrically connected the contacting plate 5 which extends into one of the pockets 3. tacting plate 6 extends from the central portion of the socket into the other pocket 3 and is provided at its inner end with the usual spring terminal 7 to contact with the central terminal of the lamp. Each of the contact plates 5 and 6 are provided with clamping screws 8 adjacent to their outer ends and accessible to a. screw driver through the openings at the tops of the horizontal and alined with the space between the screws 8 and the flange 9. The hole and flange are so positioned with reference to the screw that when the screw is set after the insertion of the wire, its friction on the wire tends to draw the wire inwardly but the abutment 10 prevents the wire from being drawn in too far as previously explained.

It will be noted that the socket described comprises a minimum number of parts and may be cheaply constructed, that the terminals are so completely inclosed in the deep pockets that there is no possibility. of arcing due to loose contact or. other cause communicating fire to any adjacent inflammable material, and, further, that the contacting wires may be inserted and connected without bending the ends thereof, and the socket can, therefore, be quite easily connected and disconnected from the supply wires.

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent of the United States is:

1. ,A receptacle for.elcctric lamps pro- Another convidcd with integral wallsforming a lamp socket and inclosing pockets of substantial depth for the connecting terminals of the receptacle, said pockets being each provided with a tool receiving opening and an opening for the introduction of a current supply wire.

2. An integral receptacle for electric lamps provided with a lamp socket and a pair of terminal inclosing recesses adjacent thereto and of substantial depth, each of said recesses being provided with a tool receiving opening, and a pair of conducting members each extending from the bottom of the lamp socket to the bottom of one of the recesses.

3. An integral receptacle 'for electric lamps provided with a lamp socket and a pair of terminal inclosing recesses adjacent thereto and of substantial depth, each of said recesses being provided with a tool receiving opening and with a separate opening for the introduction of a current supply wire, a pair of conducting members' each extending from the bottom of the lamp socket to the bottom of one of the recesses and each provided with a clamping screw anda wire positioning flange adjacent thereto, said terminal inclosing recesses each having a horizontally positioned opening in alinement with the space between the clamping screw and flange for the insertion of a current supply wire 4. A receptacle for electric lamps having a lamp receiving socket and a pair of pockets adjacent thereto, and socket connecting terminals inclosed in said pockets, each of said pockets being provided with a tool receiving opening. I

5. A receptacle for electric lamps having a lamp receiving socket, terminal inclosing pockets adjacent thereto and communicating therewith at the bottom, conductingplates, each extending from the bottom of the lamp socket to the bottom of a terminal pocket and provided with a clamping screw, an abutment, and a wire positioning flange, each of said pockets being provided with a. tool receiving opening and a horizontally positioned opening in alinement with the space between the clamping screw and flange for the insertion of a'current supply wire.

In testimony whereof, I have hereunto set my hand and aflixed my seal in the presence of the two subscribing witnesses.

EDWIN r. GUTH. [ins] Witnesses:

W. A. ALEXANDER, G. M. Snore, 

